近年來隨著積層製造技術的逐漸發展，跳脫了傳統氣管支架使用的材料及製作的方法框架。但多數只在材料的組合變化、簡單孔隙支架的設計或動物實驗等方面，取單一的領域進行探討，具有局限性。本研究將以兔子氣管為標的進行研究討論，製作出符合兔子氣管強度需求的拉脹結構之氣管支架。
材料方面選擇生醫級類TPU光固化樹脂之IC27與Poly(ethylene glycol) diacrylate作為本研究氣管支架的主材料。以不同比例混合，通過接觸角儀器的測試，得知屬於親水性材料，並測得各材料性質。結構上對拉脹結構(Auxetice structure)的引入，通過電腦輔助繪圖軟體Creo，進行拉脹單元的徑向與軸向排列設計，分別為Radial aperture scaffold(RAS)與Axial Pore Scaffold(APS)支架。而傳統蜂巢孔隙支架Honeycomb pore scaffold(HPS)，作為參照。通過有限元素分析(Finite Element Method，FEM)，對所設計管狀支架的受力變化分析預測。軟體STL轉檔後由積層製造之DLP-AM系統列印，對三種管狀支架進行拉伸、抗壓和抗彎的測試。選出綜合性質最好的IP31-RAS-0.2mm管狀支架，其極限抗拉強度為5.0587 MPa，抗壓強度為4.9298 MPa，抗彎強度為7.2240 MPa。最後進行條寬變化的探討，在機械強度、結構等效楊氏模量與孔隙率等綜合考量下，仍是IP31-RAS-0.2mm管狀支架為最優選擇。

In recent years, with the gradual development of layered manufacturing technology, it has escaped the framework of materials and manufacturing methods used in traditional tracheal scaffolds. However, most of them only take a single field for discussion in the combination of materials, the design of simple pore scaffolds, or animal experiments, which have limitations. This study will be discussed in the rabbit trachea as research subject, to produce a tracheal scaffold expansion structures conform rabbit trachea pull strength requirements.
In terms of materials, IC27 and Poly(ethylene glycol) diacrylate, which are biomedical-grade TPU light-curable resins, were selected as the main materials of the tracheal scaffold in this study. Mixed in different proportions, through the test of the contact angle instrument, it is known that the material is hydrophilic, and the properties of each material are measured. In terms of structure, the introduction of auxetice structure, through computer-aided drawing software Creo, is used to design the radial and axial arrangement of auxetic units, which are Radial Aperture Scaffolds(RAS) and Axial Pore Scaffold(APS). The traditional Honeycomb Pore Scaffold(HPS), as a reference. Through finite element analysis (Finite Element Method, FEM), the force changes of the designed tubular scaffold are analyzed and predicted. After the software STL is converted, it will be printed by the DLP-AM system manufactured by Laminate, and the tensile, compressive, and bending tests of the three tubular scaffolds are carried out. The IP31-RAS-0.2mm tubular scaffold with the best comprehensive properties was selected, and its ultimate tensile strength was 5.0587 MPa, compressive strength was 4.9298 MPa, and bending strength was 7.2240 MPa. Finally, the change of strip width is discussed. Considering the comprehensive consideration of mechanical strength, structural equivalent Young's modulus, and porosity, the IP31-RAS-0.2mm tubular scaffold is still the best choice.

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